Headlight.



(No Model.)

(Application filed Sept. 9, 1899.!

2 Sheets$heet l,

5, sa .5o

No. 646,6!7. Patented Apr. 3, |900.

J. N. BARR &. J. KIRBY, 1R.

H E A D L IG H T.

(Application filed Sept. 9, 1899.)

2 Sheets--Sheet 2 (No Model.)

TN: mams PETERS co. PHoToLn'No. wAsmNcncN, n. c,

UNrTsn STATES PATENT OnrrcnQ JACOB N. BARR, OF MILVAUKEE, VISOONSIN, ANDJOHN KIRBY, JR., OF

DAYTON, OHIO, ASSIGNORS TO THE UNITED STATES HEAD-LTGHT COM- PANY, OFBUFFALO, NEW YORK.

HEADLIGHT.

SPECIFICATION forming part of Letters Patent No. 646,617, dated April 3,1900. Application filed September 9, 1899. Serial No. '729|906. (Nomodel.)

To @ZZ whom t may concern:

Be it known that we, JACOB N. BARR, residing at Milwaukee, in the countyof Milwaukee and State of Visconsin, and JOHN KIRBY, Jr. residing atDayton, in the county of Montgomery and State of Ohio, citizens of theUnited States, have invented certain new and useful Improvements inHeadlights; and we do hereby declare that the following is a full,clear, and exact description of the invention.

`Our invention relates to improvements in locomotive-headlights; and itsobjects are, first, to improve upon the construction of locomotive-headlights; second, to lessen the cost of manufacture; third,toincrease their strength and durability; fourth, to so construct themas that they will be better adapted to modern types oflocomotives thanthose in use prior to the time of our present invention, and, iifth, toprovide a headlight in which the body of its case can, for convenienceand economy, be readily detached from the base thereof.

The invention consists in the construction and novel combination andarrangement of parts, as hereinafter fullyv described, illustrated inthe accompanying drawings, and pointed out in the claims heretoappended.

In the drawings, Figure 1 is a front elevation of the headlight and aportion of the boiler extension of a locomotive; Fig. 2, a plan view ofthe headlight; Fig. 3, a vertical sectional view thro ugh the center ofthe headlight from front to back, with the lamp and reflector and aportion of the boiler extension shown in full, the reiiector beingbroken away to show a portion of the burner therein; Fig. 4, across-sectional view of the headlight through the line Y Y of Fig. 1;Fig. 5, a broken perspective view of the base, showing the manner ofmounting the body of the case thereon; Fig. 6, a perspective View of thering employed for securing the body of the case to t-he base thereof;Fig. 7, a perspective view of one of the ring-sections employed forcoupling the body of the case to the base thereof; Fig. S, a brokenperspective view'showing a modilied form of base and manner of secu-ringthe body thereto, and Fig. 9 a similar view showing a modification inthe manner of uniting the body of the case with the top thereof.

Like numerals and letters of reference designate corresponding parts inall the figures of the drawings.

A designates the body of the headlight-case, which is made verticallycylindrical in form and which is provided with a door l, hinged at 2 andhaving a handle 3, with a catch et and a goggle 5, the latter projectingforward from the case and having a glass disk 6 secured' therein, acorresponding portion of the said body being cut away to permit light tobe reflected through said glass disk in a manner common to other formsof headlights.

B represents the top of the case and which is formed dome shape, withits upper portion terminating in a contracted neck 7, snrmountedv by acap 8. The lower end of the dome B is, by swaging or otherwise, reducedin diameter, as shown at 9, Fig. 3, to correspond with the innerdiameter of the body A, over which reduced portion the body lits and bywhich construction the contour of the case at this intersectionis madetopresentasmooth appearance, the top being secured to the body by aseries of rivets 10. At the lower end of the body A there is a metallicring or frame O, preferably formed of cast metal and having vertical andhorizontal portions 11 and 12, the body being secured to the saidVertical portion 11 by a series of rivets or bolts 13, as more clearlyshown in Fig. 3. This ring is also provided with'cross-bars 14 and earsor extensions 15, the purpose of which will presently appear.

D represents the base of the headlight and is also circular in form andof substantially the same diameter at its top as the body of the casevand which curves outwardly and is of larger diameter at the bottom, asshown in the drawings, or it may be of such other form as may besuitable, its lower edge 16 being cut or trimmed to lit the contour ofthe boiler extension 3 of the locomotive upon 95 which the headlight isto be used. This base is preferably made of sheet metal, its top portion17 being somewhat lower than its center 1S, whereby an annular shoulder19 is formed, around which shoulder and on the portion 17 c citeer? thering C sets. Ring-sections F (see Fig. 7) are secured to the undersideof the said portion 17 by bolts 20, the ring C being provided withhousings 2l to straddle the heads thereof. Other means of attachment maybe employed, however. These ring-sections are preferably formed ofhorizontal and vertical portions 22 and 23, and they are provided with asuitable number of bosses 24, bored and threaded to receive bolts orscrews 25, which pass through holes 26 in the horizontal portion l2 ofthe ring C, and by which means the said ring, together with the body ofthe case, is firmly secured to the base D, and the same can readily beremoved therefrom by removing said bolts or screws 25 and bolts G, thelatter of which bolts pass through the said ears or extensions l5 of thering Gand through the base D into tapped holes in the boiler extensionand by which means the base is secured thereon.

The ears l5 may, il' desired, be omitted, in which case the body of thecase can be removed from its base by removing the bolts or screws 25 andwithout removing the bolts G, which would then have no connection withthe ring C, but would pass directly through the base, as shown in Fig.S; but where the base is made of sheet. metal, as described, a morerigid structure is obtained by passing the bolts G through the ring C,of which the ears l5 form a part, and after removing the said bolts forthe purpose of detaching the body of the case from its base the saidbolts can be replaced and the base thereby retained in its position onthe boiler extension.

27 represents adisk which may bear against and be secured to the loweredge of the portion 23 of the ring-sections F, and which disk dividesthe base D into two horizontal compartments, the upper of which isdivided by vertical partitions 28, which, in conjunction with the top ofthe base and the said disk, form spaces 29 and 30 and an air-passage 3llfrom front to back of the base, the latter being cut away at and 33 foringress and egress of air for the purpose hereinafter set forth andfortheli'urther purpose of breaking the continuity of the wall of thebase,whereby it may be cut to t a diameter somewhat less than that uponwhich it may thereafter be desired to be used, as the loweroutwardlycurved portion of the wall will spring sufficiently tocompensate for such difference when drawn down by the bolts G, thevertical portion of the wall and the strength contributed by the annularshoulder 1) offering sufficient resistance to prevent distortion of theflat top portion of the base by reason of the strain incident to causingsuch spring'. The spaces 2S) 30 are packed with asbestos or othernon-conducting material, as shown at a in Fig. l, to preventoverheating, and the lower of said compartments mayalso be likewisepacked when found advisable to do so; but the above-described packing,together with the circulation of air through the passage 3 and beneaththe disk 27, will ordinarily be found snflicient to protect the interiorofthe' case against excessive heat from the boiler extension.

The cross-bars M, hereinbefore referred to, may be formed integral withring O or may be secured thereto in any desirable and convenient manner,and they are provided with grooves or ways 33, adapted to receive aslidingbase H, upon which the lamp and reflector are mounted, ashereinafter described.

lVe prefer that the ring-sections F should be continuous from each endoi each ofthe partitions 28, although it is not essential that theyshould be, as it is obvious that their Vfunction may be performed by anumber of separate sections.

ln the top portion ofthe base D there is an opening 3-l, through whichair can enter the case from the passage 3l for supporting combustion,and which opening may be provided with any suitable device forregulating the quantity oli' air to be admitted.

I is the reflector, .l the oil-holder, and K the burner, the latterbeing surmounted by a chimney L, which is steadied at the top by achimney-holder 35, all of which are of the usual construction andarrangement and which are mounted directly on. a base M, arranged torevolve on the sliding base Il. and held from undue movement by a catch3G, which may be of any suitable construction, to hold the base M in afixed position ou the sliding base H and adapted to be released when itis desired to turn the reflector, as hereinafter described, and to whichsliding base the base M is pivoted at 37, whereby the reflector can beturned to 'face the door when it is desired to clean the same and forother purposes.

In the top or dome portion li of the case there is a partition 88, whichseparates the body of the case therefrom, the edge of said partitionbeing llanged, as shown at 3), and. by which `flange the partition issecured to the case by means of said series of rivets l0, as shown inFig. rlhis partition is provided with an opening l0, having adownwardly-extending collar 4l, through which collar and opening theproducts ol' combustion and heat from within the case escapo into aconical or funnel shaped chamber 12, thence through a collar aLl-l intoa space Ll-lf, and through a series oi.' openings 45 inthe contractedneck 7 to the outer atmosphere, as indicated by arrows. A cap ilf3 ismounted above the collar 423 and held in place by connecting-strips il?,and whereby an open space 4S is formed between the upper end of saidcollar 43 and the lower end of said cap alti. Above the cap -Li-( andopposite the said scries of openings -i there is mounted aconically-'formed wind break or `guard Al-U, open at both ends and heldin place by connecting-strips 50, secured thereto and to said cap 46,and above the same is a cap 5l, held in place by comiecting-strips 52and leaving an open space 53 between the lower edge el the IOC IIO

heeel? .i

'said cap and the upper end of said windbreak, the function of which isto prevent currents of air blowing through the openings 45, directlyacross the cap 46, and thereby causing too rapid exhaustion of air fromwithin the case.

The above-described arrangement of ventilation is particularly welladapted to the headlight of our present invention and will be fullyunderstood by those familiar with the art to which it appertains.

In Fig. 8 of the drawings we have shown a modification of the basehereinbefore referred to by the letterD, and in which figure partscorresponding with those which have already been described are letteredand numbered the same. In said figure, Nrepresents the base, which iscast in a single piece. It is provided with a flange 54, to which thebody A of the case is bolted or riveted, the partitions 2S, hereinbeforereferred to, being formed integral with the base and the disk 27 beingsecured to the lower edges of'said partitions and to the wall of thebase at suitable points around the edges of said disk. f

Fig. 9 represents a modification of the manner hereinbefore described ofuniting the dome or top of the case to the body thereof and which may besubstituted for the construction shown in Fig. 3, if desired, althoughwe prefer said latter construction.

It will be observed from the foregoing description that the form of ourimproved headlight is such as to contribute strength and durability overthose heretofore in use; that the mounting of the body of the case onthe base thereof in a detachable manner, as more clearly shown in Fig.S, permits of its removal without removing, the base from thelocomotive, which is a decided advantage in making repairs and whichalso permits of thel changing of the headlight-case from one locomotiveto another regardless of the'diameter of boiler extensions, as the partscan all be made interchangeable and the body of the case be readilytaken from one base and attached to another. Therefore when a number oflocomotives are provided with bases of the type hereinbefore describedcases thereforcan beinterchanged at will and that when any part of theheadlight-case becomes damaged and repairs are necessary a new part canbe substituted more readily and with less expense than can be done inthe present types of headlights and without destroying other parts whichare not damaged. It will also be observed that various modificationsother than shown in the drawings can be made in details of constructionwithout departing from the spirit of our invention, to which exactdetail construction we do not limit our invention.

Having thus fully described our invention, we claiml. In combinationwith the boiler extension of a locomotive, a headlight having a casewith a base consisting of a hollow shell with the lower edge of one ofits walls conforming substantially to the contour of and being adaptedtobe mounted on said extension, and means for securing the same thereon,substantially as set forth.

2. In combination with the boiler extension of a locomotive, a headlighthaving a case the body of which is detachably joined to the basethereof, the said base consisting of a hollow shell with the lower edgeof one of its walls conforming substantially to the contour of and beingadapted to be mounted on said extension, and means for securing saidbase thereon, substantially as set forth.

3. In combination with the boiler extension of a locomotive, a headlightprovided with a case consisting chiefly of a vertical cylindrical bodyhaving a dome-shaped top and a base whose top conforms substantially tothe size and form of said body, the said base being in the -form of ahollow shell the lower edge of one of the walls of which conformssubstantially to the contour of` Aand is adapted to be mounted on saidextension, and means for securing said base thereon, substantially asset forth.

4. In combinationwith the boiler extension of a locomotive, a headlightprovided with a case consisting chiefly of a vertical cylindrical bodyhaving a domeshaped top anda base whose top conforms substantially tothe size and form of said body, the said base being in the form of ahollow shell the lower edge of one of the walls of which conforms to thecontour of and is adapted to be mounted on said extension, the said bodybeing detachably secured to said base, and means for securing theheadlight to said extension, substantially as set forth.

5. In combination with the boiler extension of a locomotive, a headlighthaving a case provided with a hollow base with a curved andvertically-disposed wall extending from the bottom of the body of thecase and with its lower edge conforming substantially to the contour ofand being adapted to be mounted on said extension, non-conductingmaterial packed within the hollow of said base, and means for securingthe headlight to said extension, substantially as set forth.

6. In combination with the boiler extension of alocomot-ive, aheadlight. having a case provided with a hollow base with a curved andvertically-disposed wall extending from the bottom of the body of thecase and with its lower edge conforming substantially to the contour ofand bein-g adapted to be mounted on said extension, an air-passageextending horizontally through said base and being in open communicationwith the interior of the case, and means for securing the headlight tosaid extension, substantially as set forth.

7. In combination with the boiler extension of a locomotive, a headlighthaving a case provided with a hollow base conforming substantially tothe contour of and which is adapted to be mounted on said extension, ahorizontal IOO disk or partition in said base and whereby the base isdivided into upper and lower compartments, Xfertical partitionsconnecting` the top of said base with said horizontal disk or partitionand whereby an air passage is formed through said base, openings in the.

wall ot said base for ingress and egress of air to and from saidair-passage, and means for securing the headlight to said extension,substantially as set forth.

8. In combination with the boiler extension ofa locomotive, a headlighthavinga case provided with a hollow base with a verticallydisposed wallextending from the bottom of the body of the case to and conformingsubstantially with the contourofand being adapted to be mounted on saidextension, a horizontal disk or partition in said base and whereby thebase is divided into upper and lower compartments, openings in the wallof said base for ingress and egress of air to and from saidcompartments, and means of secu ring the headlight to said extensionsubstantially as set forth.

9. In a locomotive-headlight case, the combination of a verticalcylindrically-formed body having an opening therein and an extensioncontaining a glass disk through which light may be reflected, adoor-opening, a door of the same contour as said body; said door beinghinged to said body and adapted to close said door-opening, adome-shaped top terminating above in acontracted neck, a cup mountedabove the same, and a base having a vertically-disposed wall extendingfrom the bottom of the body of the case and with its bottom shaped tosubstantially conform to the contour of and being adapted to be mountedon the boiler extension of a locomotive, substantially as set forth.

lO. In combination with the boiler extension of alocomotive, aheadlighthaving a case with its base provided with a vertically-disposed wallwhose lower edge conforms substantially to the contour of and is adaptedto be mounted on said extension and having provision for adjustmentthereto, and means for securing the same thereon, substantially as setforth.

ll. In combination with the boiler extension of a locomotive, aheadlighthaving a case the body of which is detaehably joined to the basethereof, the said base having a verticallydisposed wall whose lower edgeconforms substantially to the contour of and is adapted to be mounted onsaid extension and having provision for adjustment thereto, and meansfor securing said base thereon, substantially as set forth.

l2. In combination with the boiler extension ofalocomotive,aheadlightprovided with a case consisting chiefly of a vertical cylindrical bodyhaving a dome-shaped top and a hollow base provided with avertically-disposed wall with its lower edge trimmed substantially tothe contour of said boiler extension and whose top conformssubstantially to the size and form of said body; the said base havingprovision for adjustment to said extension, and means for securing saidbase thereon, substantially set forth.

In combination with the boiler extension ofa locomotive,a headlightprovided with the case consisting chiefly ol a vertical cylindrical bodyhaving a dome-shaped top anda hollow base provided with avertically-disposed Wall with its lower edge trimmed substantially tothe contour of said boiler extension and whose top conformssubstantially to the size and form of said body and the said body beingdetachably secured to said base, and means for securing the headlight tosaid extension, substantially as set forth.

la. In combination with the boiler extension of a locomotive, aheadlight-case having a hollow base conforming substantially to thecontour of and being adapted to be mounted on said extension; the saidbase having provision `for adjustment to said extension, insulatingmaterial contained within the hollow of said base, and means forsecuring the headlight to said extension, substantially as set forth.

l5. In combination with the boiler extension ot' a locomotive, aheadlight having a case provided with a base having avertically-disposed wall whose lower edge is trimmed to conformsubstantially to the contour ot and which is adapted to be mounted onsaid extension and which is provided with means for adjustment thereto,an air-passage extending horizontally through said base, an opening inthe top of said base through which opening air is admitted from saidair-passage into said case, and means for secu ring the headlightl tosaid extension, substantially as set forth.

1G. In combination with the boiler extension of a locomotive, aheadlight having a ease provided with a hollow base conforn'iingsubstantially to the contour of and which is adapted to be mounted onsaid extension and having provision for adjustment thereto, a horizontaldisk or partition in said base and whereby the base is divided intoupper and lower compartments, vertical partitions oonnecting the top ofsaid base with said horizontal disk or partition and whereby anairpassage is formed through said base, openings in the wall of saidbase for ingress and egress of air to and from said air-passage, andmeans for securing the headlight to said extension, substantially as setforth.

17. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow base conformingsubstantially to the contour of and which is adapted to be mounted onsaid extension and having provision for adjustment thereto, a horizontaldisk or partition in said base and whereby the base is divided intoupper and lower compartments, vertical partitions connecting the top ofsaid base with said horizontal disk or partition and whereby anairpassage is formed through said base, open- IOO IIO

ings in the wall of said base for ingress and egress of air to and fromsaid air-passage; the said case being detachably mounted on vsaid base,and means for securing the headlight to said extension, substantially asset forth.

1S. In combination with the boiler extension of a locomotive, aheadlight havinga case provided with a hollow base conforming to thecontour of and which is vadapted to be mounted on said extension, ahorizontal disk or partition in said base and whereby the base isdivided into upper and lower compartments, vertical partitionsconnecting the top of said base with said horizontal disk or partitionand whereby an air-passage is formed through said base, openings in thewall of said base for ingress and egress of air to and from saidair-passage; the said case being detachably mounted on said base, andmeans for securingthe headlight to said extension, substantially as setforth. I

19. In combination with the boiler extension of a locomotive, aheadlight having a case provided with .a hollow base with avertically-disposed wall conforming to the contour of and being adaptedto be mounted on said extension and having provision for adjustmentthereto, a horizontal disk or partition in said base and whereby thebase is divided into upper and lower compartments, openings in said wallfor ingress and egress of air to and from said compartments, and meansfor securing the headlight to said extension substantially7 as setforth.

20. In a locomotive-headlight case, the combination of a verticalcylindrically-formed body having an opening therein and an extensioncontaining a glass disk through which light may be reflected, adoor-opening, a door of the same contour as said body; said door beinghinged to said body and adapted to close said door-opening, adome-shaped top terminating above in a contracted neck, a cap mountedabove the same, and a base having a vertically-disposed wall with itsbottom shaped to substantially fit and being adapted to be mounted onthe boiler extension of a locomotive and having provision for adjustmentthereto, and means for securing the case on said extension,substantially as set forth.

2l. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow. base with a curved andvertically-disposed wall extending from the bottom of the body of thecase and with its lower edge conforming substantially to the contour ofand being adapted to be mounted on said extension, a ring or framesecured to and within the body of the case at the bottom thereof, andmeans for securing said ring or frame to said base, substantially as setforth.

22. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow base with a curved andvertically-disposed wall extending from the bottom of the body of thecase and with said ring or frame to said base, substantially as setforth.

23. In combination with the boiler extension of a locomotive, aheadlight'. having a case with a vertical cylindrical body and a hollowbase with a curved and vertically-disposed wall extending from thebottom of the body of the case and with its lower edge conformingsubstantially to the contour of and being adapted to be mounted on saidextension, a ring or frame secured to and Within said body at the bottomthereof, and means for securing said ring or frame to said base,substantially as set forth.

24. In combination with the boiler extension of a locomotive, aheadlight havinga case with a vertical cylindrical body and a hollowbase with a curved and vertically-disposed wall extending from thebottom of the body of the case and with its lower edge conformingsubstantially to the contour of and being adapted to be mounted on saidextension, a ring or frame secured to and within said body at the bottomthereof, and means for detachably securing said ring` or frame to saidbase, substantially as set forth.

25. In combination with the boiler extension of a locomotive, aheadlight having a case with a vertical cylindrically-formed body and abase conforming substantially to the contour of and being adapted to bemounted on said extension and having provision for adj ustment thereto,a ring or frame secured to said base and to which ring or frame saidbody is secured on the outside thereof, and means for securing the baseto said boiler extension, substantially as set forth.

26. In combination with the boiler extension of a locomotive, aheadlight having a case With a vertical cylindrically-formed body and abase; the said base conforming substantially to the contour of and beingadapted to be mounted on said extension and having provision foradjustment thereto, a ring or frame detachably secured to said base andto which ring or frame said body is secured on the outside thereof, andmeans for secu ring said base to said boiler extension, substantially asset forth.

27. In combination with the boiler extension of a locomotive, aheadlight having a hollow base conforming substantially to the contourof and being adapted to be mounted on said extension; the said basehaving provision for adjustment to said extension, a ring or framesecured to said base and to which ring or frame said body is secured onthe outside thereof, and means for securing said base to saidboilerextension, substantially as set forth.

28. In combination with the boiler extension of a locomotive, aheadlight having a hol.-

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low base conforming substantially to the contour of and being adapted tobe mounted on said extension; the said base having provision foradjustment to said extension, a ring or frame detachably secured to saidbase and to which ring or frame said body is secured on the outsidethereof, and meansfor detachably securing said base to said boilerextension, substantially as set forth,

2f). ln combination with the boiler extension ofa locomotive, aheadlight having` a case provided with a base which conformssubstantially to the contour of and is adapted to be mounted on saidextension and which is prov'ided with means for adjustment thereto, aring or frame secured to said base and to which ring or frame said bodyis also secured, an air-passage extending horizontally through saidbase, an opening in the top of said base through which opening air isadmitted from said air-passage into said case, and means for securingthe headlight to said extension, substantially as set forth.

Se. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow base conforming substantially to the con tour of and which is adapted to be mounted onsaid extension and having provision for adjustment thereto, a ring orframe secured to said base and to which ring or frame said body is alsosecured, a horizontal disk or partition in said base and whereby thebase is divided into upper and lower compartments, vertical partitionsconnecting the top of said base with said horizontal disk or partitionand whereby an air-passage is formed through said base, openings in thewall of said base for ingress and egress of air to and from saidair-passage, and means for securing the headlight to said extension,substantially as set forth.

3l. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow base-conformingsubstantially to the contour of and which is adapted to be mountedonsaid extension and having provision for adjustment thereto, a ring orframe secured to said base and to which ring or frame said body is alsosecured, a horizontal disk orpartition in said base and whereby the baseis divided into upper and lower compartments, vertical partitionsconnecting the top of said base with said horizontal disk or partitionand whereby an air-passage is formed through said base, openings in thewall of said base for ingress and egress ot' air to and from saidair-passage; the said case being detachably mounted on said base, andmeans for securing the headlight to said extension, substantially as setforth.

32. In combination with the boiler extension ol' a locomotive,aheadlighthavinga case provided with a hollow base conforming to thecontour of and which is adapted to be mounted on said extension, a ringor frame secured to said base and to which ring or frame said body isalso secured, a horizontal disk or partition in said base and wherebythe base is divided int-o upper and lower compartments, verticalpartitions connecting the top of said base with said horizontal disk orpartition and whereby an air-passage is formed through said base,openings in the wall et said base for ingress and egress et air to andfrom said air-passage; the said case being detachably mounted on saidbase, and means for securing the headlight to said extension,substantially as set forth.

233. ln combination with the boiler extension of a locomotive, aheadlighthavinga case provided with a hollow base conforming to thecontourof and beingadapted to be mounted on said extension and havingprovision l'or adjustment thereto, a ring er frame secured to said baseand to which ring or traine said body is also secured, ahorizontal diskor partition in said base and whereby the base is divided into upper andlower compartments, openings in the wall of said base for ingress andegress of air to and from said compartments, and means for securing theheadlight to said extension substantially as set forth.

S-t. In alocomotive-headlight case, the com bination ot a verticalcylindrieally-formed body having an opening therein and an cxtensioncontaining a glass disl; through whichlightmaybereilected,adoor-opening,a decret the same contour as saidbody; said door being hinged to said body and adapted to close saiddoor-opening, a dome-shaped top terminating above in contracted neck, acap mounted above the same, and a base having a vertically-disposed wallwith its bottom shaped to substantially fit and being adapted to bemounted on the boiler extension of alocomotive, and having provision foradjustment thereto, a ring or frame secured to said base and to whichring or frame said body is sccured on the outside thereof, and means forsecuring the case on said extension, substantially as set forth.

ln combination with the boiler exten sion of a locomotive, a headlighthaving a ease provided with a base having a curved andvertically-disposed wall with its lower edge conforming to the contourof and being adapted to be mounted on said extension, a sliding basehaving a lamp and retlector mounted thereon, ways fixed to said base andadapted to receive said sliding base, and means for securing said baseto said boiler extension, substantially as set forth.

36. In combination with the boiler extension of a locomotive, aheadlight having a case provided with a hollow base having a curved andvertically-disposed wall with its lower edge conforming to the contourof and being adapted to be mounted on said extension, a sliding basehaving a lamp and reflector mounted thereon, ways fixed to said base andadapted to receive said sliding base, and means for securing said baseto said boiler extension, substantially as set forth.

37. lnalocomotive-headlght, the combina IIO tion of a case having avertical cylindricallyformed body and a hollow base; the said base beingprovided with a curved and verticallydisposed wall with an airpassagetherethrough communicating with the interior of the case, a sliding basehaving a lamp and reflector mounted thereon, and ways Xed to said baseand adapted to receive said sliding base, substantially as set forth.

3S. As a new article of manufacture, a base for a headlight consistingof a hollow shell having the lower edge of one ofitswalls shaped orformed to substantially the contour of the boiler extension of alocomotive upon which the same is adapted to be mounted, an airpassagethrough said base and an opening through the top of the base; the saidopening communicating with said air-passage, substantially as set forth.

39. As a new article of manufacture, a base zo for a headlightconsisting of a hollow shell having the lower edge of one of its wallsshaped or formed to substantially the contour of the boiler extension ofa locomotive upon which the same is adapted to be mounted, a disk Q2 5dividing the hollow of said base into upper and lower compartments, anair passage through the upper of said compartments, and an openingthrough the top of said base; said opening communicating with saidair-passage, 3o substantially as set forth.

In testimony. whereof We hereunto affix our signatures this 5th day ofSeptember, 1899.

JACOB N. BARR. [1.. s] JOHN KIRBY, JR. ln presence of- GEORGE G. MASON,N. EMMoNs, Jr.

